(shell)# cat /sys/kernel/debug/gpio

GPIOs 0-31, platform/pinctrl, gpio0:
GPIOs 32-63, platform/pinctrl, gpio1:
GPIOs 64-95, platform/pinctrl, gpio2:
 gpio-90  (                    |bt_default_wake     ) out hi
GPIOs 96-127, platform/pinctrl, gpio3:
 gpio-98  (                    |enable              ) out hi
 gpio-111 (                    |mdio-reset          ) out hi
GPIOs 128-159, platform/pinctrl, gpio4:

drm panel驱动默认使用enable做为屏的gpio使能脚, 所以这边重点看一下enable的状态, 是否与预期的一致.